This paper examines the long-run effects of sustainability reporting on manufacturing firms’ productivity based on a signaling perspective. Using data collected from Global Reporting Initiative (GRI), Factiva and Compustat, this study investigates the performance impacts and moderating effects of sustainability reporting for 243 US manufacturing firms in the period of 1999-2016. Through conducting event studies, our findings reveal that sustainability reporting leads to not only positive abnormal return on assets (ROA) but also labor productivity (LP). Our results suggest three moderators including sustainability-related media exposure, reporting continuity and first-time reporting. This study provides insights into implementing sustainability reporting as an effective sustainability information disclosure strategy for manufacturers.